Hot water systems

What is an energy efficient hot water heater?

Types of heatersAn energy efficient hot water heater is one that is correctly sized for your household, well positioned, and appropriate for your climate.

Hot water accounts for around 16% of the average Victorian household’s energy costs.

Most of the hot water is used in the bathroom, followed by the laundry and the kitchen.

Remember – you pay to heat all of the hot water you use, so don’t waste it!

Hot water makes up 16% of your energy bill

What are the benefits of an energy efficient hot water heater?

An energy efficient water heater has the potential to reduce household energy bills significantly.

The table below shows the estimated average annual savings from replacing an existing water heater with a high efficiency water heater in our study of 60 existing (pre-2005) houses.

Existing Replacement Annual Savings
Gas instantaneous High efficiency gas instantaneous $46
Gas boosted solar $120
Gas storage High efficiency gas $60
Gas boosted solar water heater $190
Electric storage system High efficiency gas instantaneous
$356
Gas boosted solar water heater
$510

How to choose an energy efficient hot water system

There are a range of energy efficient hot water heaters to choose from, depending on your fuel source, household size, budget, and preference for instantaneous or storage systems. By choosing the best hot water system for your needs and using it wisely, you can lower your hot water costs.

Find out more information about the different types of energy efficient hot water systems below.

More information

Smarter Choice logo

Get advice on energy efficient hot water systems with the Smarter Choice retail program, where trained retail staff can advise you on energy efficient heating choices in store.

Find your nearest retailer to take that next step towards being a more energy efficient household.

Download the Smarter Choice fact sheet on hot water systems, and solar hot water below.

Document | PDF | 124KB
Fact sheet: Hot water systems

Document | PDF | 127KB
Fact sheet: Solar hot water